Basically my Java application needs is an editableline chart and an editable Gantt chart! I'm looking tosome other codes (like to GanttProject atganttproject.sourceforge.net) to acomplish my needs ofa Gantt chart on my software (but I still haven't cometo a decision on that). But for an editable linechart, I consider that the GEF code (with somechanges) could help me a lot. For this line chart I will need to restrain themovement of my Figs, making them "stay on track"! If achoose to use GEF to the Gantt chart I will have thesame basic need (besides a lot of other needs!! :0) ).

What I want to know is if someone have donesomething like that? Is GEF a good choice to do thator should I look to other sources?? How should this be done in the GEF context?? ShouldI start by changing the LayerManager or theModeManager (or both) ??